'10th amendment says power to enforce local law enforcement shall reside exclusively in the states'

Donald Trump has threatened to deploy   troops to other Democratic strongholds, including Chicago and Baltimore, putting him on a collision course with the US Constitution as the US president seeks to expand his executive powers on an unprecedented scale. For in-depth analysis and a deeper perspective, FRANCE 24's Annette Young welcomes Eric Lisann, Legal Analyst and former US Federal Prosecutor.